Between 2015 and 2019, Herwig was Head of Business Development for Latin America for NEC Energy Solution, worldwide one of the leading energy storage battery integrators for grid-connected energy storage solutions. Due to its weak grid infrastructure and huge amount of off-grid electricity generation, Latin America was identified by the NEC Group as a promising market for its storage solutions. Herwig led a team of local engineers working in business development and project development based in Mexico, Colombia, Argentina, Brazil and Chile. Energy storage is still a poorly understood technology in these markets, and Herwig had the privilege to participate in many conferences as panelist and speaker talking about the benefits of energy storage for the Latin American energy infrastructure. During these years, several energy storage projects for grid stabilization, behind-the-meter energy storage, demand charge management and solar & PV have been installed in Chile, Colombia and Brazil.